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Re: 請教一下如何讓16f877辨別ASCII code呢?
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新會員
 
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In your Interrupt Service Routine..
char receive_c = ReadUSART(); //read a key from your computer' keyboard... if (receive_c == 'a')//if the key is ascii a { putcUSART('a');//send an ascii a back to computer } i assume you are using mcc18 compiler. Hope this help.
發表於: 2006/5/12 1:58
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Re: 請教一下如何讓16f877辨別ASCII code呢?
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新會員
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Ryang前輩，
那如果是想藉由電腦的keyboard呢? 我是打算利用RS232從vb程式來控制pic，例如我按下"a"鍵，pic會有其對應動作出來。 可否提供個方向供我查詢資料,謝謝
發表於: 2006/5/11 18:07
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Re: 請教一下如何讓16f877辨別ASCII code呢?
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版主
 
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按鍵掃描及處理彈跳問題是寫為控制器的基礎要件，市面上有很多中文的PIC書都有詳細說明。台科大圖書的 "詳細圖解PIC16F877原理與應用"是本蠻值得看的書。
底下也有範例可供參考: http://www.microchip.com/stellent/idc ... eId=1824&appnote=en011019
發表於: 2006/5/11 14:15
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請教一下如何讓16f877辨別ASCII code呢?
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新會員
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如題，
我想讓PIC得知我目前按下鍵盤上的按鍵，得以觸發其動作。 有否範例可以參考..謝謝
發表於: 2006/5/10 21:02
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